<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Title</title>
    <style>
        [v-cloak]{
            display: none;
        }
    </style>
</head>
<body>
<div id="app" v-cloak>
    <h2>{{message}}</h2>
</div>
<script src="https://unpkg.com/vue@3"></script>
<script>
   setTimeout(()=>{
       const app=Vue.createApp({
           data(){
               return{
                   message:"hello vue"
               }
           }
       })
       app.mount("#app")
   },3000)
</script>
</body>
</html>